Real Dictionary

subcontract
verb: If one firm subcontracts part of its work to another firm, it pays the other firm to do part of the work that it has been employed to do.

subcontract in Accounting
verb: If one company subcontracts part of its work to another company, it pays the other company to do part of the work that it has been employed to do.

subcontract in American English
a secondary contract undertaking some or all of the obligations of a primary or previous contract: construction companies often let subcontracts for the electrical work, plumbing, etc.
to make a subcontract (for)
intransitive verb: to make a subcontract
noun: a contract by which one agrees to render services or to provide materials necessary for the performance of another contract
transitive verb: to make a subcontract for

subcontract in British English
noun: a subordinate contract under which the supply of materials, services, or labour is let out to someone other than a party to the main contract
verb: to enter into or make a subcontract